Please solve question no.40.ii.


Answer: x=1,y=-1.

Dear student,Q. Solve for x and y;  3x=9.3y and 8.2y=4xSol.     Now, 3x=9.3y               3x=32.3y       3x=3(y+2)     am×an=am+n   As basis are same, powers can be equated.Therefore, x=y+2.................(iii)                  x-y=2 .............(i)                  Similarly, 8.2y=4x            23.2y=22x            2y+3=22x      xmn=xmn and am×an=am+n As basis are same, powers can be equated.y+3=2x2x-y=3.................(ii)Put x=y+2 from eq.(iii) in equation (ii)2y+2-y=32y+4-y=32y-y=3-4y=-1Put y=-1 in eq. (iii)x=y+2x=-1+2x=1Therefore,  x=1, y=-1Regards

  • 0
What are you looking for?